Press



May 26, 1925.

J. J. BERRIGAN PRESS Filed Aug. 28, 1924 Patented May 26, 1925.

UNITED stares N y l y 1,538,886 arent oFFicE,y

JOHN J. BERRIGAN, or cHIoAGo,'1LLrNors, nssreNonl or ONE-THIRD 'ro JOHN B. BnanreAN AND ONE-THIRD 'ro naTrrEnY-Nn PAMALON, Born: or CHICAGO,

ILLINOIS.

rases. i

Application filed August 281924. Serial No. 734,558.

To all who/ln t may concern.:

Be it known that I, JOHN J. BERRIGAN, a citizen of the United States, residing at Chicago, inthe county of Cool; and State of Illinois, have invented a certain new and useful Improvement in Presses, of which the following is a specification.

This invention relates to a press, particularly to a hydraulic press. It has for one object to provide means wherebyythe contents of the press may be readily and positively discharged, particularly after the pressing operation hasbeen completed. Another object is to provide in a press means whereby the pressed cake even though extremely hard and difficult to separate may be positively and easily discharged. Other objects will appear from time to time thoughout the specification and claims.

My invention is illustrated more or less diagrammatically in the accompanying drawings, wherein:

F igure l is a side elevation;

Figure 2 is a plan View with parts in section; v

Figure 3 is a verticalr cross section on line 3 3 of Figure 1.

Like parts are indicated by like characters throughout.

The press is carried preferably on two pairs of supporting legs A A, which legs are joined by channel members B B. The chan-l nels are bent outwardly as'at B1 B1. yAt one end of the press is a pressure cylinder C within which is located a piston G1. Supported from this piston on af rod C2 is a movable platen C3. This platen is adapted to slide upon and to be supported by channelsB B andis wide enough so as to pass over the widened portion B1; without falling through.

At the opposite end is a pressure cylinder D having in it a piston D1. A second moving platen D2 is carried from the piston D1 by means of the rod D3. The pressure cylinder D is preferably of sufficient length to permit the platen D2 to be moved into the press fully to complete theI pressing operation in one pressing movement. The two pressure cylinders are preferably hydraulic. Hydraulic pressure may be supplied to them in any suitable manner through any suitable connections. VThese details are not shown in detail as they form no part of the present invention.

" Mounted between the two platens and rest-l ing upon the channels B are a plurality of partition plates E. These plates when the press is to be filled are normally put in the position shown in Figures l and 2, being spaced apart from each other. They are of such width that when moved over the widened portion D1, they will fall through it, but when placed as shown in Figuresl and 2 they rest on the channels as shown in detail in Figure 3 and are supported by these channels.

Surrounding thepress is a covering casing made up preferably of fixed sides F F,

a movable bottom F1, and a movable top ,FK

T he bottom F1 may be made of a number of plates pivoted at Gr for swinging movement and fastened by a latch G1. The top F2 may be similarly made of a number of plates pivoted at G2 and fastened closed'by latches Gral The bottom covering F1 may extend under the widened portion B1 or it may be omitted from this part of the press, and

the top covering F .2 may extend over this portion or it may be omitted. The detailed construction of the casing is not shown as its details form no part' of the present invention, and they might be considerably varied., perforated bottom might be used and many means. might be provided for permitting liquid from the contents of the press to escape, but my invention is not limited to any particular form of the casing construction.

H H are perforations through the side walls' F of the channels `and they are adapted to receive rods or shafts H1.

Although I have shown an operative device,.still it will be vobvious that many changes might be made in size, shape and arrangement of parts without departing materially from the spirit of my invention; and I wish, therefore, that showing be taken as in a sense diagrammatic. vParticum larly I have shown one form of locking device for holding the top and bottom in position. This is shown in Figure 3 and has been omitted in the other two figures for purposes of clearness. However, any such locking device might be used without de parting materially from the spirit of my invention.

The use and operation of my invention are as follows:

lVhen the press is to be used, the movable ing platen.

platen" C3` isA mbve'di'forward to the position indicated atYdottedlines 1n FigureY 2 at X against outwardr movement. number o't plates 1s put into position as shown and the bottom of the press is held closed. It is then filled with material to be` pressed and pressure isapplied on'the mov- .It moves the contents of the press, .together with the partition plates toward tlie now fixed platen" andthismovement iscontinued'until thepressing is complete'.l l

The n'ext'step in the movement is to dis4 cl'iarge the contenttsotithe press: Ai'ter' this the rods H1 are r'e'niovedand pressure is' again applied on the side ofthe pressing` platen, andthvi'smovesthe entire contents of thepress and' thejplaten C3 laterally to the' le'tt asshoivn'inFigures l an'dQ. The platen C3 moves over the widened part Wherethe channels are spread andbach to its initial position. TheV partition: plates are' not of suteient Widtht'o kdo this andas they come' over the Widened part, they tall' through the chan'nelsfand from." the press, and? thus;- ot ooi'irse,v carry the'contents of the press 'Yiththem'.y l f` L Fiequentlyy it will" be found that the presse'dcak'eivill fall` freely fronithe parti tionfplates, but itit" is'partieidarly har'd and ditticult'to. deal with it can be'k knockedior otherwise positively removed' from" the plates. this means'tliefcontentsot` the pressn'o matter how hard,` sticky ory tenacious' it may be, can readily be discharged troni the pressn'nd removed' from the parl 'i tion plates'.

As soon as the' pressed contents have been discharged the plateirD'2 isrvithdi'awn. The platen' C3 is moved again to the dotted line position" andi'secured 'i'nthat position,` and the same partitions or additionalones 'are' pnt into place andfth'e press may again be lilled and operated. Thus' tlieoperation of dischargingthe press" is rendered positive and extremelyv rapid' andA the entire apparatu's isu not p'u't outof productive opera# tion While dischargetalres placeV and -ivhile' the material is' being removed" from the plates.

Iclaini:

1. Ina pre`ss-`partitions Within-said press mounted for movement,l and supportsvliich norn'ially-hold said partitions' during press'- ing, said'supports shapedthroughout a'portion of theirf'lengtliso asl to permit the conL tents of saidfip're'ss* and said partitions" to fall from said press."

2.' Ini a hydraulic press, a: plurality of partitions and supports along which said partitions are adapted to move, said supports being spaced away from eachotheig throughout' porti-onl- 'ottlieirl length; a distance greaterthan the-"Width" o'tsaid partitions" so as to cause the partitions to tall therethrough when moved over said spaced away portions.IA

3. In afpress, Lt-plurality o;t'-`parti'tions and supports along which said partitions are adapted to move and means tor mov-iupr them,- said supports being spaced away from each other@Y throughout a portion ot their length, a distance greater than the Width oi said partitions so astocausev the parti"- tions to tal-l .therethrough When" moved over saidspace'd awayportions". Q y

et; In"` a press members adapted partially to.' enclose thecontents'otsaidpress; said members mounted 'for'movenient" and a snpport Which normally holds said menbers during`l pressing', said supporti shaped throughout. a' part` of its-` length so' as to permitlthe contents" otll said|` press and said memberstofall"from tlie press, in combination with* a moving memberV adapted during` pressing' to,l be heldin position' to prevent discharge tromthe press' and 'adapted aiteil pressing' to be moved so asto permit dis'- charge from' the press.L y l 5; In a press;7 members adapted partially to enclose the contentsoti saidipress', said members mountedtfor movement and" a sup# port Which normally"'holds` said 'members du'ringpressing, and means for movingsaid members, said support shaped throughoutv a part ot its length soi as? to' permit the contents'of said press -and s'aidmembersto fall from the press, in combination With a mov' ingr' n'iemb'er adapted during pressingto`be held in position to prevent discharge from the press" and a`clap`tef`l.attei" pressing'tobe moved so as to permit discharge vtrointh'o press; y

G. In a press', partitionsWithin said press mounted for movementg'and'supports which normally hold said partitions during pressing; sa'iid "supports shaped throughout a po`rtionv of their-length so as to `permittlie contents otsaidpress andVj said partitionsto fallfrom said press; in combination ivitha nioving member adapted during" vpressingto be held in positiontoprevent dischargefrom the'pressan'd adapted after pressing to be moved so as to permit discharge from the press.` I

7. In a` press, a plurality oi" partitions and supports" along which .said partitions l a're adapted to move; said supports being" spaced away tifon'ie'ach other, throughout a portion of their length, a vdista-nce greaterl than the Width ot'saidtpartitionsf so as to cause the partitions to falli therethrough .Whelr moved ove'rsaid spa-ced" aivay' portions,y in" combination Witlramoving. member adapted during pressing" t'obe 'held in' positionl to prevent discharge from thepres's and adapted after liressiiigy to be moved so'as to permitA` dis^- charge from the press.

llU

S. In a hydraulic press, a plurality of partitions and supports along which said partitions are adapted to move and means for moving them, said supports being spaced away from each other, throughout a portion of their length, a distance greater than the width of said partitions so as to cause the partitions to fall therethrough when moved over said spaced away portions, in combination with a moving member adapted during pressing to be held in position to prevent discharge from the press and adapted after press-ing to be moved so as to permit discharge from the press.

9. In a hydraulic press, a pair of movable platens and a plurality of partitions between them, said p latens and partitions supported upon `guide members, one of said platens adapted normally to be held stationary during pressing, and adapted when pressing is complete to be moved along the guide members, saidguide members spaced apart a distance greater than the width of the partition so that when moved over said space the partitions and contents of the press fall through.

10. In a hydraulic press, a pair of movable platens and a plurality of partitions between them, said platens and partitions supported upon lateral guide members, one of said platens adapted normally to be held stationary during pressing, and adapted when pressing is complete to be moved along the guide members with the partitions and the contents of the press, said guide members spaced apart a distance greater than the width of the partition so that when moved over said space the partitions and contents of the press fall through.

11. In a horizontal press partitions within said press mounted for generally horizontal movement and supports which normally hold said partitions during pressing, said supports shaped throughout a portion of their length so as to permit the contents of said press and said partitions to fall from said press.

12. In a horizontal press, a plurality of partitions and supports along which said partitions are adapted to move in a generally horizontal direction and means Jfor moving them, said supportsbeing` spaced away from each other, throughout a portion of their length, a distance greater than the width of said partitions so asto cause the partitions to fall therethrough when moved over said spaced away portions.

Signed at Chicago, county of Cool: and State ot Illinois, this 23 day of August, 1924.

JoHN J; BERRIGAN. 

